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Reaction of Akaganeite with Mars-Relevant AnionsAkaganeite has been identified by the Chemistry and Mineralogy (CheMin) and Sample Analysis at Mars (SAM) instruments onboard the Curiosity rover in Yellowknife Bay, Gale Crater, Mars. Akaganeite was also detected by the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instrument on the Mars Reconnaissance Orbiter (MRO) in Robert Sharp Crater and Antoniadi basin. Akaganeite is an iron(III) hydroxide with a hollandite-like tunnel structure with tunnels usually occupied by Cl-. Chloride in tunnels is not immobile and can be replaced by other anions in solution. Identification of tunnel composition with Mars-like instruments can help to characterize composition of ancient aqueous environments where akaganeite is present on Mars.
Document ID
20180004269
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Pan, M. J. (Franklin and Marshall Coll. Lancaster, PA, United States)
Ming, D. W. (NASA Johnson Space Center Houston, TX, United States)
Rampe, E. B. (NASA Johnson Space Center Houston, TX, United States)
Peretyazhko, T. S. (Jacobs Engineering Group, Inc. Houston, TX, United States)
Date Acquired
August 8, 2018
Publication Date
March 19, 2018
Subject Category
Metals And Metallic Materials
Report/Patent Number
LPI Contrib. No. 2083-2170
JSC-E-DAA-TN53590
Meeting Information
Meeting: Lunar and Planetary Science Conference (LPSC)
Location: Woodlands, TX
Country: United States
Start Date: March 19, 2018
End Date: March 23, 2018
Sponsors: Lunar and Planetary Inst., Universities Space Research Association (USRA)
Funding Number(s)
CONTRACT_GRANT: NNJ13HA01C
Distribution Limits
Public
Copyright
Public Use Permitted.

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